sludge hole

noun

A hand-hole, or manhole, at the bottom of a steam boiler, by means of which sediment can be removed, such as during cleaning or a blowdown.

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Meanings

nounsludge hole (plural sludge holes)

plural sludge holes

  1. A hand-hole, or manhole, at the bottom of a steam boiler, by means of which sediment can be removed, such as during cleaning or a blowdown.
Cite this entry
APA

sludge hole. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/sludge%20hole

MLA

“sludge hole.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/sludge%20hole. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “sludge hole,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/sludge%20hole.

Source: sludge hole on Wiktionary, CC BY-SA 4.0.